I went out yesterday morning and still hunted. I walked a little ways and stopped for a few minutes. Then walk a little further and stop again. With the crunchy snow and frozen leaves, I figured I would have little luck. But squirrels hear stuff all the time I guess.
Anyway, several times when I stopped for a few minutes, a squirrel I hadn't seen but had seen me made a move to get away. They will go up a tree and eventually get nervous and make a move. I popped several that way. I knew this years ago, but hadn't squirrel hunted in years and forgot most of what little I knew.